Telephone: 01325 462722
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Domino Panel Blue LED

blueled domino

Henry Williams are committed to further improving the reliability of our Domino signalman’s panels.  In association with MARL International we have developed a direct replacement Blue LED, to be used only for automatic signal indications and push/pull units.

This unit is compatible with all T2 BA7 bulb style Domino signalman’s panels installed throughout the UK.

Mean Time Between Failure = 100,000 hours
Typical emission colour: x=0.45, y=0.41
Colour Temperature 2500—4600K
This unit will not illuminate below 9Vac/dc
Current will fully stabilise at 17Vac/dc and remain constant to 28Vac/dc

Internal full wave rectification giving:

  • Imperceivable flicker on ac supplies above 30Hz
  • Minimal harmonic disturbance

Designed to withstand supply spikes and transients below 300mJ

Product marking indicates current rating

Part No. 086/023044


Henry Williams Limited

Dodsworth Street
County Durham

Email: Please use form opposite.
Tel: 01325 462722
Fax: 01325 245220

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About Henry Williams

The story of Henry Williams Limited goes back to 1883, when the company was formed to manufacture control and signalling equipment for the rapidly expanding railways network. Since those historic and pioneering days, our skills have broadened, our technology has advanced with the time and our sphere of influence has widened more

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